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1 /* | 1 /* |
2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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40 return new ChannelSplitterNode(context, sampleRate, numberOfOutputs); | 40 return new ChannelSplitterNode(context, sampleRate, numberOfOutputs); |
41 } | 41 } |
42 | 42 |
43 ChannelSplitterNode::ChannelSplitterNode(AudioContext* context, float sampleRate
, unsigned numberOfOutputs) | 43 ChannelSplitterNode::ChannelSplitterNode(AudioContext* context, float sampleRate
, unsigned numberOfOutputs) |
44 : AudioNode(NodeTypeChannelSplitter, context, sampleRate) | 44 : AudioNode(NodeTypeChannelSplitter, context, sampleRate) |
45 { | 45 { |
46 addInput(); | 46 addInput(); |
47 | 47 |
48 // Create a fixed number of outputs (able to handle the maximum number of ch
annels fed to an input). | 48 // Create a fixed number of outputs (able to handle the maximum number of ch
annels fed to an input). |
49 for (unsigned i = 0; i < numberOfOutputs; ++i) | 49 for (unsigned i = 0; i < numberOfOutputs; ++i) |
50 addOutput(AudioNodeOutput::create(this, 1)); | 50 addOutput(1); |
51 | 51 |
52 initialize(); | 52 initialize(); |
53 } | 53 } |
54 | 54 |
55 void ChannelSplitterNode::process(size_t framesToProcess) | 55 void ChannelSplitterNode::process(size_t framesToProcess) |
56 { | 56 { |
57 AudioBus* source = input(0)->bus(); | 57 AudioBus* source = input(0)->bus(); |
58 ASSERT(source); | 58 ASSERT(source); |
59 ASSERT_UNUSED(framesToProcess, framesToProcess == source->length()); | 59 ASSERT_UNUSED(framesToProcess, framesToProcess == source->length()); |
60 | 60 |
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71 } else if (output(i)->renderingFanOutCount() > 0) { | 71 } else if (output(i)->renderingFanOutCount() > 0) { |
72 // Only bother zeroing out the destination if it's connected to anyt
hing | 72 // Only bother zeroing out the destination if it's connected to anyt
hing |
73 destination->zero(); | 73 destination->zero(); |
74 } | 74 } |
75 } | 75 } |
76 } | 76 } |
77 | 77 |
78 } // namespace blink | 78 } // namespace blink |
79 | 79 |
80 #endif // ENABLE(WEB_AUDIO) | 80 #endif // ENABLE(WEB_AUDIO) |
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